Ophthalmology is the branch of medicine that focuses on the study, diagnosis and treatment of eye diseases and disorders. An ophthalmologist has either a Doctor of Medicine degree or a Doctor of Osteopathic Medicine degree, with specialty training in vision and eye care. In addition to performing eye exams, diagnosing and treating eye disease and prescribing medications and prescription lenses, ophthalmologists also perform eye surgery, including LASIK and cataract surgery.

In the following pages, you will find information about ophthalmology, including: common visual problems; vision disorders; eye diseases; nonsurgical and surgical treatment options; and best practices to protect or improve your eye health.

If you have any questions, please do not hesitate to contact our office for more information.

Locations

Find us on the map


Hours of Operation

Our Regular Schedule

Freeport:

Monday:

8:00 am-6:00 pm

Tuesday:

8:00 am-5:00 pm

Wednesday:

8:00 am-5:00 pm

Thursday:

8:00 am-5:00 pm

Friday:

8:00 am-5:00 pm

Saturday:

Closed

Sunday:

Closed

Stockton:

Monday:

Closed

Tuesday:

8:00 am-1:00 pm

2:00 pm-5:00 pm

Wednesday:

Closed

Thursday:

8:00 am-1:00 pm

2:00 pm-5:00 pm

Friday:

8:00 am-1:00 pm

2:00 pm-5:00 pm

Saturday:

Closed

Sunday:

Closed

Lanark:

Monday:

8:00 am-1:00 pm

2:00 pm-6:00 pm

Tuesday:

Closed

Wednesday:

8:00 am-1:00 pm

2:00 pm-5:00 pm

Thursday:

Closed

Friday:

Closed

Saturday:

Closed

Sunday:

Closed

Oregon:

Monday:

Closed

Tuesday:

8:00 am-1:00 pm

2:00 pm-5:00 pm

Wednesday:

8:00 am-1:00 pm

2:00 pm-5:00 pm

Thursday:

Closed

Friday:

8:00 am-1:00 pm

2:00 pm-5:00 pm

Saturday:

Closed

Sunday:

Closed

Rock Falls:

Monday:

8:00 am-5:00 pm

Tuesday:

8:00 am-5:00 pm

Wednesday:

8:00 am-5:00 pm

Thursday:

8:00 am-5:00 pm

Friday:

Closed

Saturday:

Closed

Sunday:

Closed

Reviews From Our Satisfied Patients

  • "Injured my eye and Northwest Eye Care saw me right away. Very professional and service was outstanding. Thank you!!"
    Brian S.
  • "I can’t thank Donna and the rest of the team enough for getting me in with urgency today as soon as I called with an issue. Such great people to their customers. I would recommend 10/10 times!"
    Bryn B.
  • "Absolutely fantastic experience, this is the third time I've been here, and I was so impressed with Dr. Diemer's customer service, I had to write this review. I wish there was a category for 6 stars."
    John M.